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%I #9 Sep 08 2022 08:45:36
%S 19,223,631,733,937,1039,1447,1549,1753,2161,2467,2671,3079,3181,3691,
%T 3793,4099,4201,4507,4813,5119,5323,5527,6037,6343,6547,7057,7159,
%U 7669,7873,8179,8689,8893,9199,9403,9811,10321,10627,10729,10831,11239,11443,11953
%N Primes congruent to 19 mod 51.
%H Vincenzo Librandi, <a href="/A142487/b142487.txt">Table of n, a(n) for n = 1..1000</a>
%F a(n) ~ 32n log n. - _Charles R Greathouse IV_, Jul 03 2016
%t Select[Prime[Range[2400]], MemberQ[{19}, Mod[#, 51]] &] (* _Vincenzo Librandi_, Aug 28 2012 *)
%o (Magma) [p: p in PrimesUpTo(13000) | p mod 51 eq 19]; // _Vincenzo Librandi_, Aug 28 2012
%o (PARI) is(n)=isprime(n) && n%51==19 \\ _Charles R Greathouse IV_, Jul 03 2016
%Y Cf. A000040.
%K nonn,easy
%O 1,1
%A _N. J. A. Sloane_, Jul 11 2008
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